Junior ADU (JADU) near San Marcos, CA
Ritz ADU Design Build
7878 Clairemont Mesa Boulevard, San Diego, CA 92111
20.9 miles
RITZ ADU Design Build has served San Diego County since 1965, offering full-service ADU construction including granny flats, garage conversions, backyard offices & rental units. Expert planning, 3D design, permitting & builds that boost property value.
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Oceanside ADU Design
3355 Mission Avenue, Aaronsburg, PA 92058
11.2 miles
Oceanside ADU Design is an Oceanside, CA firm specializing in detached, attached, garage conversion, and junior ADUs. Founded by structural engineer Devin, they handle architecture, engineering, and permitting in-house for efficient, budget-conscious results.
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Gary Faith Construction
7313 Carroll Canyon Road, San Diego, CA 92121
17.3 miles
Gary Faith Construction is a licensed ADU contractor in San Diego specializing in detached ADUs, garage conversions, and above-garage units. Serving San Diego County, they manage projects from consultation to completion, ensuring full compliance with local zoning laws.
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Murray Lampert Design, Build, Remodel
2851 Camino del Rio South, San Diego, CA 92108
25.3 miles
Murray Lampert, San Diego's trusted ADU builder since 1975, offers full design-build services including granny flats, in-law suites, and garage conversions. With 50+ years of experience, they deliver custom, high-quality accessory dwelling units tailored to your needs.
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Ruland Design Group
3245 University Avenue, San Diego, CA 92104
26.9 miles
Ruland Design Group offers expert ADU design services in San Diego, including garage conversions, detached ADUs, JADUs & more. With 600+ completed designs, they guide clients from concept to permit-ready plans.
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IL Total Design
9655 Granite Ridge Drive, San Diego, CA 92123
23 miles
IL Total Design & Build is a San Diego ADU specialist offering full-service design, permitting, and construction for granny flats, garage conversions, detached ADUs, and JADUs. They also provide home additions and remodeling across San Diego County.
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First Choice Home Builders
10620 Treena Street, San Diego, CA 92131
15.9 miles
First Choice Home Builders is a licensed San Diego ADU contractor with 15+ years of experience. They offer full-service ADU construction, including detached ADUs, garage conversions, and JADUs, with permit handling and flexible financing options.
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Organic ADU
4432 Ingraham Street, San Diego, CA 92109
29.1 miles
California ADUs (granny flats) add rental income or family housing to existing lots. Detached units up to 1,200 sq ft are allowed. Building costs start at $1,200/sq ft. Hire a specialized ADU contractor in San Diego for permits and zoning compliance.
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ADUs & Garage Conversions | Sprawl Design
1893 Lorient Place, Chula Vista, CA 91913
36.8 miles
Sprawl-Design offers expert ADU design in San Diego, including garage conversions, attached & detached units. Starting from $60K, they manage design to construction with local expertise & budget clarity.
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Elevated Remodeling
San Diego, CA 92101
27.6 miles
Elevated Remodeling is a San Diego ADU contractor since 2007, specializing in detached ADUs, garage conversions, casitas & granny flats. Services include JADUs, in-law suites & home additions, with full permitting support.
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Stephens Brothers Construction
31779 Fallbrook Circle, Murrieta, CA 92563
28.5 miles
Stephens Brothers Construction is Temecula & Murrieta's top ADU builder since 2011, offering detached ADUs, JADUs, garage conversions & casitas. Costs from $300–$350/sq ft. Licensed, hands-on, and serving all of Riverside County.
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Motif Architecture
30211 Avenida De Los Banderas #200, Rancho Santa Margarita, CA 92688
42.5 miles
Motif Architecture offers ADU, JADU, and garage conversion design services in Orange County, CA. Their five-phase process covers space planning, permitting, and construction. Projects include backyard cottages and garage-to-ADU conversions in Costa Mesa and Irvine.
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North County ADU Construction
1010 S COAST HWY 101, Ste 208, Encinitas, CA 92024
9.6 miles
North County ADU Construction is a local ADU contractor serving north San Diego County. They specialize in garage conversions, JADUs, detached ADUs, and prefab installs. With 500+ builds and a 96% satisfaction rate, they handle design, permitting, and construction.
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Streamline Design Group
500 La Terraza Boulevard, Escondido, CA 92025
4.8 miles
Streamline Design Group offers ADU design and permitting in San Diego, covering detached, attached, JADU, garage conversions, and multi-family units. Referenced in the State ADU handbook, they deliver permit-ready plans at 40–60% less than architect fees.
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Shermans Builders Inc
4818 Mount Elbrus Drive, San Diego, CA 92117
21.7 miles
Shermans Builders Inc. is a licensed San Diego ADU contractor with 150+ projects completed. Services include detached ADUs, garage conversions, and JADUs, covering permits, design, and construction with upfront cost estimates.
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What you need to know
Searching for top Junior ADU (JADU) ADU Contractors in San Marcos, California? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Junior ADU (JADU) ADU Contractor in San Marcos ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Junior ADU (JADU) professionals can guide you through every step.
San Marcos homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Junior ADU (JADU) experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Junior ADU (JADU) ADU Contractors in San Marcos, California, and get started today.